What's next for Olympic champ Michael Phelps, now that he's too laden with gold to stay afloat in the pool? Maybe an amphibious biathalon with none other than Masters winner Bubba Watson, as Phelps told Reuters over the weekend:

Golf with his friend, U.S. Masters champion Bubba Watson is also on the agenda as Phelps confirmed during the week when he said he would not be rescinding his decision to retire."Bubba said I'm a good swimmer but still terrible at golf. So maybe I'll challenge him to swimming and we can go on a golf course after that, that will be (all) my competitive swimming after I'm done," he said.